﻿
//////////////////////////////////////////////////////////////////////////////
//
// Copyright © 1998-2024 Glodon.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the “Software”),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//////////////////////////////////////////////////////////////////////////////
#pragma once
#include "IPickFilter.h"
#include "UniIdentity.h"
#include "IGraphicsNode.h"

namespace gcmp
{
    class IGraphicsNodeReference;
    class ElementId;
    class IDocument;
    class IDocument;
    class IPickTarget;
}

namespace Sample
{
    class PickFilter : public gcmp::IPickFilter
    {
    public:
        PickFilter() {};
        PickFilter(const gcmp::IDocument* pDocument);
        virtual ~PickFilter();

        // 是否允许拾取此Element GRep及其子节点
        virtual bool AllowElement(const gcmp::ElementId& elemId) const override;

        // 是否允许拾取nodeReference对应的节点
        virtual bool AllowGraphicsNode(const gcmp::IGraphicsNodeReference& nodeReference) const override;

        //设置PickTarget中选项的接口，PickNodeReferenceAction利用其进行PickTarget的设置
        virtual bool SetPickTargetOption(gcmp::IPickTarget* pickTarget) override;
    protected:
        const gcmp::IDocument* GetDocument() const { return m_pDocument; }

    private:
        const gcmp::IDocument *m_pDocument;

    };
}

